Improvement in roofing compounds



IU'NITED' STATES PATENT OFFICE.

UItIAH BAKER, OF ELWOOD, NEW YORK.

IMPROVEMENT IN ROOFING COMPOUNDS.

Specification forming part of Letters Patent No. 222,437, dated December 9, 1879; application filed May 31, 1879.

a To all'whom it may concern:

Beitknown that LURIAHBAKER, ofElwood, in the county of Suffolk and State of New York, have invented certain new and useful Improvements in Roofing Compounds and I do hereby declare that the following isa full, clear, and exactdescriptionof'the construction and operation of the same.

My invention relates to roofing composi- I have discovered that the following proportions of the severalingredients form the best compound: First, fire-clay, thoroughly dried and pulverized, fifty parts; second, the g ashes of anthracite coal, well sifted and in a fine state, twenty-five parts third, fine sand,

twelve parts-5 fourth,cement,tenparts; fifth,

I lime, watcr-slaked until reduced toa powder,

three parts;- these parts to be thoroughly mixed together and ground in linseed-oil, either thick in its consistency for coating sand and gravel roofing, or thin for painting only, or thoroughly mixed together in linseed-oil without grinding, of a proper consistency to be used for the purpose of cement.

I am aware that coal-ashes have been treated and used in the formation of mineral paint, and I do not, therefore, broadly claim them but What I do-claim is- In a compound for a roofing-paint, coating, or cement, fifty parts of fire clay, twenty-five parts of ashes of anthracite coal, twelve parts of fine sand, ten parts of cement, three parts of powderedslaked lime, all the parts thor oughly mixed and ground, or mixed and not gr0und,-in linseedoil, or their equivalents in kind or proportion, as and for the purposes substantially as set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

URIAH BAKER.

-Witnesses HENRY O. BAKER, ISAAC H. BAKER.- 

